CN1141267A - High anti-break and high strength slag cement without clinker and burning - Google Patents
High anti-break and high strength slag cement without clinker and burning Download PDFInfo
- Publication number
- CN1141267A CN1141267A CN96118039A CN96118039A CN1141267A CN 1141267 A CN1141267 A CN 1141267A CN 96118039 A CN96118039 A CN 96118039A CN 96118039 A CN96118039 A CN 96118039A CN 1141267 A CN1141267 A CN 1141267A
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- CN
- China
- Prior art keywords
- slag
- cement
- adulterant
- admixture
- polymkeric substance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/08—Slag cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical slag
- C04B7/153—Mixtures thereof with other inorganic cementitious materials or other activators
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/40—Surface-active agents, dispersants
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Clinker-free, non-sintering, high bending and compressive strength slag cement is composed of slag as main raw material, and mixed with stimulant, polymer, additives, inhibitor, grinding aid, etc. to form said cement directly. Processing technology is simple, prodn. cost is low, and product quality reaches grade 625. Its bending strength is higher than that of other same grade cement.
Description
The present invention relates to cement, refer in particular to slag cement.
Slag is the waste residue of metallurgical industry, and how to handle waste residue also is one of difficult problem of metallurgical industry always, has now developed many kinds of slag cement, impels scoriaceous recycling.For example generally utilize water-granulated slag slakin silicate cement both at home and abroad or it as Portland cement, trass cement, the active mixture of complex cement.Also develop a kind of alkali slag cement (being also referred to as JK cement) especially in recent years both at home and abroad.The principal feature of above-mentioned alkali slag cement is to adopt batchings such as liquid soluble glass, compound alkali, efficient buck agent, admixture, with highly basic is the activity of main activated slag, obtain high-strength or super high strength concrete thus, but because a variety of causes, particularly owing to the use habit problem on the market, above-mentioned alkali slag cement does not really come into the market.Because it must use the slag powder of height fine grinding and special alkaline liquid exciting agent, after proportioning, just can obtain having the alkali slag consolidating material of setting and harden ability and mix directly composition alkali-slag concrete, therefore also have the people directly to be referred to as alkali-slag concrete with material such as sand, stones.Because the slag powder of this technology is with after the alkaline liquid exciting agent mixes, plasticity-is relatively poor, it is very fast to condense, initial set need only 10-20 minute, about final set 1 hour, obviously be difficult to actual use the in building operation, therefore fail by suitability for industrialized production and application, but the high strength that it produced, even superelevation is strong and weather resistance all has very big magnetism to the scientific research personnel, therefore for a long time, all in a kind of existing high-strength advantage of research, the cement that can adapt to the requirement of present engineering construction again is the purpose that the scientific research personnel pursues.
The objective of the invention is to propose a kind of high anti-break and high strength slag cement at above-mentioned objective requirement, it not only has the mechanical property of above-mentioned alkali slag cement, and the form of its product and outward appearance again with now use cement identical.Second order of the present invention provides a kind of above-mentioned Cement Production method, and this method avoids using grog, and removes sintering fully from, only needs a powder-grinding process, and directly the blended method bears the novel high standard cement of a kind of 625-725 of having.The 3rd purpose of the present invention is because this cement has high fracture resistance (generally can exceed this label 1-2 level), and a kind of cement that is specially adapted to the seismic region construction work is provided.
The present invention is an adulterant with active silica and active calcium oxide mainly; Through calcium aluminate, the agent of yellow soda ash equal excitation, strengthen with solid state water-soluble polymerss such as water-soluble poly oxyethane; Adopt the efficient additive diminishing to promote sclerosis; And delay time of coagulation with high-efficient retarder.
Clinker-free baking-free high anti-break and high strength slag cement proposed by the invention has the 625-725 high grade, and its fracture resistence force is greater than label 1-2 level, and can be unburned, a grinding, manufacturing process is simple, energy consumption is low, can reduce direct production cost significantly and found the factory to invest to have splendid economic benefit and social benefit.
Of the present invention being described in detail as follows:
Slag 78-83%
Exciting agent 8-12%
Polymkeric substance 0.5-2%
Admixture 0.5-2%
Inhibitor 0.3-1%
Retardant 0.3-1%
Grinding aid 0.2-0.4%
The adulterant surplus
Above-mentioned exciting agent is meant the active materials of energy activated slag such as calcium aluminate, yellow soda ash, water glass, urea, ferrous sulfate, and adulterant refers to active silica and active calcium oxide.The activity of above-mentioned exciting agent and adulterant synchronous reaction energy activated slag strengthens with polymkeric substance again, and this polymkeric substance refers to polyethylene oxide, carboxymethyl an aromatic plant metioned in ancient books Mierocrystalline cellulose, solid state water-soluble polymerss such as polyacrylamide and natural resin glue.Above-mentioned admixture is silicon ash, wollastonite etc. and other tensio-active agent; Retardant is calcium lignosulfonate, sodium lignosulfonate.The general purpose material that grinding aid and adulterant are all conventional.
Two, manufacturing process
After the prescription that proposes according to the present invention is ready to raw material, produce by following manufacturing process.
Manufacturing process of the present invention is as follows:
The slag drying is mixed by formula rate with exciting agent, adulterant and polymkeric substance, admixture, inhibitor, retardant, grinding aid etc., carries out homogenizing.Advance the grinding machine fine grinding then,, advance the wrapping machine output and dress up product through after the assay was approved; Or advance the finished product silo, produce the canned finished product of powder.
The original moisture content of water-granulated slag is about about 30%, need dry processing, requires oven dry back moisture＜1%, other batching is solid powder or granule material, and the homogenizing of directly preparing burden enters ball mill grinding, adds grinding aid simultaneously, because of after slag is ground to certain fineness, (surpass 1500cm as specific surface area
2After/the g), grindability degenerates, and must add grinding aid, otherwise be difficult to be ground to the processing requirement fineness, and slag cement of the present invention goes out grinding rate and requires to reach 0.08mm and tail over＜and 1%, inspection by sampling when grind, after this assurance fineness can pack and make finished product.
Embodiment 1:
Adopt 82 parts of certain factory's blast furnace slags, quality coefficient
Greater than 1.35, through 8 parts of the active admixtures of special processing, 8 parts of exciting agents, 0.8 part in polymkeric substance, 0.8 part of admixture, 0.4 part of retardant, through mix levigate after, fineness reaches 0.08mm, tails over to be＜2%, just makes 625 high anti-break and high strength slag cements, initial set is 55min, final set is 3h30min, and its 3 days, 7 days, 28 days ultimate compression strength is respectively 27.4,41.0,62.4MPa, reaches 625 ordinary Portland cement standards; Its 3 days, 7 days, 28 days folding strengths are respectively 6.9,8.4,9.4MPa, surpass 725 ordinary Portland cement standards.
Embodiment 2:
Adopt 80 parts of certain factory's blast furnace slags, through 6 parts of the active admixtures of special processing, 11 parts of exciting agents, 0.5 part in polymkeric substance, 1.5 parts of admixtures, 8.8 parts of retardant, 0.2 part of grinding aid, through mix levigate after, fineness reaches 0.08mm and tails over＜1%, just makes 725 high anti-break and high strength slag cements.Initial set 1h, final set 3h40min.Its 3 days, 7 days, 28 days ultimate compression strength is respectively 32.4,44.7,74.2Mpa, reaches 725 ordinary Portland cement standards.Its 3 days, 7 days, 28 days folding strengths were respectively 8.2,9.5,10.3Mpa, surpass 825 cement of high index standards.
According to a preliminary estimate, make the unburned slag cement of high anti-break and high strength by technology of the present invention, the cost of its direct production will descend at double; The investment of founding the factory will reduce about 60%; Energy consumption reduces by 2/3rds.Therefore has very great economic implications.
Claims (2)
1, a kind of clinker-free baking-free high anti-break and high strength slag cement, components such as exciting agent, polymkeric substance, admixture, inhibitor, grinding aid and adulterant, the prescription that it is characterized by this slag cement is:
Slag 78-83%
Exciting agent 8-12%
Polymkeric substance 0.5-2%
Admixture 0.5-2%
Inhibitor 0.3-1%
Retardant 0.3-1%
Grinding aid 0.2-0.4%
The adulterant surplus
Above-mentioned exciting agent is calcium aluminate, yellow soda ash, water glass, urea, ferrous sulfate etc.; Adulterant is active silica, active calcium oxide etc.; Polymkeric substance refers to polyethylene oxide, carboxymethyl cellulose, solid state water-soluble polymerss such as polypropylene ethamine and natural resin; Admixture is surfactants such as silicon ash, wollastonite.
2, a kind of manufacturing process of clinker-free baking-free high anti-break and high strength slag cement, it is as follows to it is characterized by manufacturing process:
The slag drying is mixed by formula rate with exciting agent, adulterant and polymkeric substance, inhibitor, admixture, retardant, grinding aid etc., carries out homogenizing, fine grinding, check back packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96118039A CN1141267A (en) | 1996-02-09 | 1996-02-09 | High anti-break and high strength slag cement without clinker and burning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96118039A CN1141267A (en) | 1996-02-09 | 1996-02-09 | High anti-break and high strength slag cement without clinker and burning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1141267A true CN1141267A (en) | 1997-01-29 |
Family
ID=5124739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96118039A Pending CN1141267A (en) | 1996-02-09 | 1996-02-09 | High anti-break and high strength slag cement without clinker and burning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1141267A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101570424B (en) * | 2009-06-08 | 2011-09-28 | 西安建筑科技大学 | Polypropylene fiber reinforced inorganic polymer composite material and preparation method thereof |
| CN102531424A (en) * | 2010-12-16 | 2012-07-04 | 山东科技大学 | Slag-based quick-setting cementing material |
| CN101525217B (en) * | 2009-04-21 | 2013-07-17 | 常州工程职业技术学院 | Environmental-friendly clinker-free cement and preparation method thereof |
| CN103848580A (en) * | 2014-02-20 | 2014-06-11 | 辽宁石化职业技术学院 | Clinker-free slag portland cement and production method thereof |
| CN106007462A (en) * | 2016-05-30 | 2016-10-12 | 江苏名和集团有限公司 | Special additive for high flexural strength concrete |
| CN108373276A (en) * | 2018-03-12 | 2018-08-07 | 合肥尚涵装饰工程有限公司 | A kind of composite enhanced cement of environmental protection and preparation method thereof |
| CN112960920A (en) * | 2021-04-27 | 2021-06-15 | 天津金石建材科技有限公司 | Green ecological environment-friendly cement and preparation method thereof |
-
1996
- 1996-02-09 CN CN96118039A patent/CN1141267A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101525217B (en) * | 2009-04-21 | 2013-07-17 | 常州工程职业技术学院 | Environmental-friendly clinker-free cement and preparation method thereof |
| CN101570424B (en) * | 2009-06-08 | 2011-09-28 | 西安建筑科技大学 | Polypropylene fiber reinforced inorganic polymer composite material and preparation method thereof |
| CN102531424A (en) * | 2010-12-16 | 2012-07-04 | 山东科技大学 | Slag-based quick-setting cementing material |
| CN103848580A (en) * | 2014-02-20 | 2014-06-11 | 辽宁石化职业技术学院 | Clinker-free slag portland cement and production method thereof |
| CN106007462A (en) * | 2016-05-30 | 2016-10-12 | 江苏名和集团有限公司 | Special additive for high flexural strength concrete |
| CN108373276A (en) * | 2018-03-12 | 2018-08-07 | 合肥尚涵装饰工程有限公司 | A kind of composite enhanced cement of environmental protection and preparation method thereof |
| CN112960920A (en) * | 2021-04-27 | 2021-06-15 | 天津金石建材科技有限公司 | Green ecological environment-friendly cement and preparation method thereof |
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